Description
Overview:
The Tension Spring 3 (Makita part number 231821-1) is a small but critical component used to maintain correct tension within the mechanism of Makita cordless circular saws. Made from durable spring steel with looped ends, it keeps moving parts returning to position for smooth, repeatable operation. This genuine Makita part suits demanding site and workshop use, helping prevent sticking guards or sluggish levers that can affect cut quality. It is designed for direct fit on Makita BSS610 and BSS611 models, and is also used on the 5604R circular saw. Fitting a fresh spring restores reliable tension and supports accurate, controlled cutting performance while reducing unnecessary wear on related parts.
Key Features:
- Genuine Makita part for assured fit and performance
- Helps restore correct tension in the saw mechanism for smooth operation
- Robust spring steel construction for long service life
- Consistent return action supports precise, controlled cutting
- Direct-fit design minimises downtime during maintenance
- Suitable for cordless circular saw platforms used on site or at home
- Stable tension helps reduce wear on guards, levers and linkages
- Makita part number: 231821-1
Typical Applications:
Used to replace a worn or weakened tension spring within Makita circular saw mechanisms. Common during routine servicing or when symptoms include poor guard return, sticky linkages, or irregular cut start-up. Suitable for tradespeople, facilities teams, and DIY users maintaining BSS610, BSS611 or 5604R saws to keep them cutting smoothly and safely on timber, sheet goods, and site materials.
Also known as:
Return spring, tension coil, pull spring, mechanism spring, Makita 231821-1 spring, guard return spring, circular saw tensioner, saw linkage spring.
Fits Models:
BSS610, BSS611, 5604R
Alternate Part Numbers:
2318211
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